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HMS ''E42'' was a British E class submarine built by Cammell Laird, Birkenhead. She was laid down on 23 October 1915 and commissioned in July 1916. She served during the First World War, making an unsuccessful attack on ''U-92'' on 1 July 1918.〔Koerver, Hans Joachim. ''Room 40: German Naval Warfare 1914-1918. Vol II., The Fleet in Being'' (Steinbach, Germany: LIS Reinisch, 2009).〕 ''E42'' was sold in Poole on 6 September 1922. ==Design== Like all post-''E8'' British E-class submarines, ''E42'' had a displacement of at the surface and while submerged. It had a total length of and a beam length of . It contained two diesel engines each providing a power of and two electric motors each providing power.〔(【引用サイトリンク】title=E Class )〕 Its complement was thirty-one crew members.〔 The submarine had a maximum surface speed of and a submerged speed of . British E-class submarines had fuel capacities of of diesel and ranges of when travelling at .〔 ''E42'' was capable of operating submerged for five hours when travelling at . It was fitted with a quick-firing gun gun (12 pounder), five torpedo tubes, and one spare torpedo tube. Its torpedo tubes were fitted at the front and the aft; unlike pre-''E9'' submarines, the two midship section torpedo tubes were not included.〔 E-Class submarines contained wireless systems with power ratings; in some submarines, these were later upgraded to systems by removing a midship torpedo tube. Its claimed highest dive depth was although it was capable of reaching depths of below . Some submarines contained Fessenden oscillator systems.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「HMS E42」の詳細全文を読む スポンサード リンク
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